Emily Thorne's (Emily VanCamp) plan for Revenge has had its ups and downs over the seasons, but she's never faced an obstacle as impossible to overcome as her own mind betraying her with blackouts. How can she proceed if she can't even trust herself? In Season 3, Episode 15 ("Struggle") she decides to resort to desperate measures.

In this clip from the episode, Em storms into Nolan's house, unhappy. The blackouts are still going strong, and this time, she came to on her porch with a knife in her hand. Relax — she "just" destroyed her father's carving (which we bet is what we're seeing in the promo), so nothing murderous has happened. Yet.

Emily realizes she needs to "figure something out" about the blackouts, but she refuses to go to a doctor. She's also not willing to skip town with Nolan. No, she still wants to finish what she started. How? By doing what "[she] should have done in the first place... kill them all."

Wow. That is really not the Em we know. Has desperation really pushed her so far that she's willing to resort to cold blooded murder of the entire Grayson clan? Is she, perhaps, still in a blackout while making this declaration?

Check it out yourself, and then share your theories about what's going through Emily's mind in the comments below.

Catch the next episode of Revenge on Sunday, March 16 at 10 p.m. ET on ABC.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!